The most common Rudraksha is five mukhi Rudraksha. A five mukhi Rudraksha have five natural lines from head to bottom. It is blessed by lord Shiva. According to Padma Puran wearer rules out over all types of living beings.\n\nThis five mukhi is blessed by the five forms of Lord Shiva -- Saddyojat, Tatpurush, Aghor, Vamdev and Isshan. It gives protection from all kind of diseases and provide mental peace and happiness.\n\nParad Shivling when worshipped with proper procedure, belief, and enthusiasm helps human beings physically, spiritually, and psychologically. Also protects people from natural calamities, disaster, external evil effects. Some of the reference in the ancient texts of Ayurveda and mythological origins which justifies these belief are as follows.\n\nIt is stated and believed in various texts that if a mercury Shivling is placed and worshipped in a house, society, or a temple. It is considered that it leads to prosperity, positive strength, and also considered that goddess Lakshmi resides at that place for generations to generation.